1H-Imidazole, hydrobromide (1:1)

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2008-04-23

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

Directive 92/69 (1992)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

signed 2005-11-22

Type of method:

capillary method

Key result

Melting / freezing pt.:

>= 220.3 - <= 225.7 °C

Decomposition:

no

Sublimation:

no

The determination of the melting point was performed by visual judgement using the capillary method. The test item showed five stages of melting. the melting starts at 220 °C and ends at 226 °C. No solid particles were left.

Experiment No.	Stage A [°C]	Stage B [°C]	Stage C [°C]	Stage D [°C]	Stage E [°C]
1	220.3	221.4	223.6	224.9	225.5
2	220.3	221.5	223.6	224.8	225.8
Mean value	220.3	221.5	223.6	224.9	225.7

Stage A: Beginning of melting/ wet point

Stage B: Shrinking point

Stage C: Collapse point

Stage D: Liquefying point

Stage E: Final stage of melting

Conclusions:

The test item Imidazolhydrobromid has a melting range of 220.3 °C to 225.7 °C.

Description of key information

The test item Imidazolhydrobromid has a melting range of 220.3 °C to 225.7 °C.